CN106469156B - Data base read-write method and device - Google Patents
Data base read-write method and device Download PDFInfo
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- CN106469156B CN106469156B CN201510505796.0A CN201510505796A CN106469156B CN 106469156 B CN106469156 B CN 106469156B CN 201510505796 A CN201510505796 A CN 201510505796A CN 106469156 B CN106469156 B CN 106469156B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/14—Error detection or correction of the data by redundancy in operation
- G06F11/1402—Saving, restoring, recovering or retrying
- G06F11/1474—Saving, restoring, recovering or retrying in transactions
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/23—Updating
- G06F16/2358—Change logging, detection, and notification
Abstract
The embodiment of the invention discloses data base read-write method and devices.Database includes in the terminal, database has at least one main connection and at least two non-master connections, main connection is for executing the write operation to database, and non-master connection is for executing the read operation to database, which comprises terminal obtains the read operation to database；If read operation is initiated by the first application, read operation is executed using the first non-master connection；First application is the application in terminal；Wherein, the first non-master connection is the preset non-master connection for being only used for executing the read operation that the first application is initiated；At least two non-master connections include at least one first non-master connection.Using method and device provided by the embodiment of the present invention, the first non-master connection is only used for executing the read operation that the first application is initiated, therefore can guarantee that the execution efficiency for the read operation that the first application is initiated not will receive the influence of other application read operation.
Description
Technical field
The present embodiments relate to field of terminal more particularly to data base read-write method and devices.
Background technique
For the management convenient for contact information, existing terminal generallys use contact database and saves contact information.Eventually
Application on end can realize the read-write of contact information by database manipulations such as read operation and write operations, to realize quick
The functions such as dialing, contact information backup.With the increasingly diversification of terminal applies, need to read and write the application of contact information
It is more and more, so that terminal read operation to be dealt with and write operation are also more and more.
In order to improve the execution efficiency of database manipulation, the prior art would generally use write-ahead log (Write-
AheadLogging, abbreviation WAL) read operation initiated to each application of mode and write operation be scheduled.Under WAL mode,
The connection of database is divided into main connection and two classes of non-master connection, wherein main connection can execute read operation and write operation, it is non-master
Connection is served only for executing read operation.Terminal first detects whether there is the non-of free time after getting using the read operation initiated
Main connection；If there is idle non-master connection, then the read operation is executed using idle non-master connection；If non-master connection is equal
Occupied and main connection is idle, then main connection can be used and execute the read operation；If main connection and non-master connection are all occupied,
The read operation can be then put into the tail of the queue of pending read operation queue, held one by one when waiting non-master connection idle according to queue sequence
Each read operation in the pending read operation queue of row.Terminal is received using after the write operation initiated, and detects whether exist
Idle main connection；If there is idle main connection, then the write operation is executed using idle non-master connection；If it is main all
It is occupied, then the read operation can be put into the tail of the queue of pending write operation queue, according to queue sequence when waiting main connection idle
Each write operation in pending write operation queue is executed one by one.
In actual use, there is the specific application more sensitive to read operation execution efficiency, such as contact application etc..
If the read operation execution efficiency that the specific application is initiated is too low, under the user experience that will cause these applications or entire terminal
Drop.For example, will lead to terminal contact people's information interface opening if the read operation execution efficiency initiated of contact application is too low
Slowly.And under WAL mode, read operation execution efficiency is influenced by concurrent number of read operations, and concurrent number of read operations is got over
More, the execution efficiency of read operation is lower.Therefore the read operation each application initiated using existing WAL mode and write operation into
Row scheduling can seriously affect the execution efficiency of read operation and write operation, cause specific application when concurrent read operation is more
The execution efficiency of initiated read operation is low.
Summary of the invention
The embodiment of the invention provides data base read-write method and devices, to solve when the operation of concurrent data library is more,
The low problem of the execution efficiency of read operation.
In a first aspect, the embodiment of the invention provides a kind of data base read-write method, the database include in the terminal,
The database has at least one main connection and at least two non-master connections, and the main connection is for executing to the database
Write operation, the non-master connection is for executing read operation to the database, this method comprises: terminal acquisition is to institute
State the read operation of database；If the read operation is initiated by the first application, the read operation is executed using the first non-master connection；
First application is the application in the terminal；Wherein, described first it is non-master connection be it is preset be only used for execute institute
State the non-master connection for the read operation that the first application is initiated；At least two non-master connection includes that at least one is described first non-master
Connection.
With reference to first aspect, in a first possible implementation of that first aspect, the method also includes: if the reading
Operation is initiated by the second application, then executes the read operation using the second non-master connection；Wherein, second application and described the
One application is different；The second non-master connection is other non-master connections in addition to the described first non-master connection.
With reference to first aspect or first aspect the first possible implementation, in second of first aspect possible realization
In mode, the method also includes: if the read operation is initiated by the second application, the reading is executed using the second non-master connection
Operation；Wherein, second application is different from first application；The second non-master connection is except the described first non-master connection
Except other non-master connections.
Second of possible implementation with reference to first aspect, in first aspect in the third possible implementation, institute
State method further include: when all described first is non-master connects occupied, detect whether in the presence of the second idle non-master company
It connects；When there is the idle second non-master connection, the read operation is executed using the described second idle non-master connection；Its
In, the second non-master connection is other non-master connections in addition to the described first non-master connection.
The third possible implementation with reference to first aspect, in the 4th kind of possible implementation of first aspect, institute
State method further include: when all described second is non-master connects occupied, the read operation is put into the first team to be processed
Position corresponding to the priority applied in column with described first.
With reference to first aspect or the possible implementation any of them of first to fourth kind of first aspect, in first aspect
In 5th kind of possible implementation, the database is contact database.
With reference to first aspect or the first to five kind of first aspect possible implementation any of them, in first aspect
In 6th kind of possible implementation, first application is contact application.
With reference to first aspect or the first to six kind of first aspect possible implementation any of them, in first aspect
In 7th kind of possible implementation, the method also includes: the terminal obtains the write operation to the database；Detection is
It is no to there is idle main connection；When there is idle main connection, the write operation is executed using the main connection；When all
It is described it is main connection it is occupied when, if the write operation by it is described first application initiate, the write operation is put into second
Corresponding position is applied with described first in queue to be processed.
Second aspect, the embodiment of the invention also provides a kind of data base read-write device, the database is included in terminal
In, the database has at least one main connection and at least two non-master connections, and the main connection is for executing to the number
According to the write operation in library, for executing the read operation to the database, described device includes: acquiring unit for the non-master connection,
For obtaining the read operation to the database；First execution unit, for making when the read operation is initiated by the first application
The read operation is executed with the first non-master connection；First application is the application in the terminal；Wherein, described first is non-master
Connection is the preset non-master connection for being only used for executing the read operation that first application is initiated；Described at least two is non-master
Connection includes at least one described first non-master connection.
In conjunction with second aspect, in second aspect in the first possible implementation, the device further include: second executes list
Member, for executing the read operation using the second non-master connection when the read operation is initiated by the second application；Wherein, described
Second application is different from first application；The second non-master connection is other non-master in addition to the described first non-master connection
Connection.
In conjunction with second aspect or second aspect the first possible implementation, in second of second aspect possible realization
In mode, first execution unit includes: detection sub-unit, is used for when the read operation is initiated by first application,
It detects whether in the presence of the described first idle non-master connection；Subelement is executed, for there is the described first idle non-master company
When connecing, the read operation is executed using the described first idle non-master connection.
In conjunction with second of second aspect possible implementation, in second aspect in the third possible implementation, institute
Detection sub-unit is stated, is also used to detect whether when all described first non-master connections are occupied in the presence of idle second
Non-master connection；The execution subelement is also used to when there is the idle second non-master connection, uses idle described the
Two non-master connections execute the read operation；Wherein, the described second non-master connection is other in addition to the described first non-master connection
Non-master connection.
The third possible implementation in conjunction with second aspect, in the 4th kind of possible implementation of second aspect, institute
State the first execution unit further include: subelement of joining the team will be described for when all described second non-master connections are occupied
Read operation is put into the first queue to be processed and position corresponding to the priority of first application.
In conjunction with second aspect or the possible implementation any of them of first to fourth kind of second aspect, in second aspect
In 5th kind of possible implementation, the database is contact database.
In conjunction with second aspect or the first to five kind of second aspect possible implementation any of them, in second aspect
In 6th kind of possible implementation, first application is contact application.
In conjunction with second aspect or the first to six kind of second aspect possible implementation any of them, in second aspect
In 7th kind of possible implementation, the acquiring unit is also used to obtain the write operation to the database；Described device is also
Including third execution unit, the third execution unit includes: main connecting detection subelement, for detecting whether there is the free time
Main connection；Write operation executes subelement, for writing behaviour using described in the main connection execution when there is idle main connection
Make；Write operation is joined the team subelement, for when all main connections are occupied, if the write operation is by described first
Using initiation, then the write operation is put into the second queue to be processed and applies corresponding position with described first.
In the embodiment of the present invention, the database include in the terminal, the database have at least one it is main connection and
At least two non-master connections, the main connection is for executing the write operation to the database, and the non-master connection is for executing
Read operation to the database, the terminal obtain the read operation to the database；If the read operation is by the first application
It initiates, then executes the read operation using the first non-master connection；First application is the application in the terminal；Wherein, institute
Stating the first non-master connection is the preset non-master connection for being only used for executing the read operation that first application is initiated；It is described extremely
Few two non-master connections include at least one described first non-master connection.Using method provided by the embodiment of the present invention and dress
It sets, the first non-master connection is only used for executing the read operation that first application is initiated, therefore can guarantee what the first application was initiated
The execution efficiency of read operation not will receive the influence of other application read operation.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, for those of ordinary skills, do not making the creative labor
Under the premise of property, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the flow diagram of data base read-write method one embodiment of the present invention；
Fig. 2 is the flow diagram of another embodiment of data base read-write method of the present invention；
Fig. 3 is the flow diagram of data base read-write method of the present invention；
Fig. 4 is the flow diagram of another embodiment of data base read-write method of the present invention；
Fig. 5 is the flow diagram of another embodiment of data base read-write method of the present invention；
Fig. 6 is the structural schematic diagram of data base read-write device one embodiment of the present invention；
Fig. 7 is the structural schematic diagram of another embodiment of data base read-write device of the present invention；
Fig. 8 is the structural schematic diagram of another embodiment of data base read-write device of the present invention；
Fig. 9 is the structural schematic diagram of terminal one embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Whole description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
It should be noted that the database in the embodiment of the present invention can be in accordance with atomicity (Atomicity), one
Any one database of cause property (Consistency), isolation (Isolation), persistence (Durability).The data
Library include in the terminal, and at least have one it is main connection and at least two non-master connections, wherein it is described it is main connection for holding
Row is to the write operation of the database, and the non-master connection is for executing the read operation to the database.The non-master connection
Including at least a first non-master connection and a second non-master connection, the first non-master connection is preset is only used for
The non-master connection for the read operation that first application is initiated is executed, the second non-master connection is in addition to the described first non-master connection
Other non-master connections.Wherein, the database can be contact database, and the information saved in the database is connection
People's information.
It is the flow diagram of data base read-write method one embodiment of the present invention referring to Fig. 1.The embodiment is for showing
The execution method of database read operation.As shown in Figure 1, this method comprises the following steps:
Step 101, terminal obtains the read operation to database.
Some in terminal is applied when needing to read the contact information in contact database, can initiate one it is right
The read operation of the database, the available read operation of terminal.For example, contact application needs to show contact person's letter to user
When breath, a read operation to contact database can be initiated, in order to read the contact information in contact database,
And then contact information is shown.For another example, user data backup, which is applied, is backing up to clothes for the contact information in terminal
When business device, a read operation to contact database can be initiated, in order to read the letter of the contact person in contact database
Breath, and then by the information preservation read to server.
Step 102, if the read operation is initiated by the first application, the read operation is executed using the first non-master connection；
First application is the application in the terminal.
After getting the read operation, terminal judges whether the read operation is initiated by the first application.Wherein, read operation
Promoter can be determined by the information carried in read operation, or can also be determined by the source of read operation.
If the read operation is initiated by the first application, terminal executes the read operation using the first non-master connection；If
The read operation is initiated by the second application, then terminal executes the read operation using the second non-master connection.Wherein, it described second answers
With being different application with first application, first application is the application more demanding to read operation execution efficiency, such as
Contact application etc.；Second application is application of less demanding to read operation execution efficiency, such as data backup application etc..
Using this executive mode, the first non-master connection is only used for executing the read operation that first application is initiated, therefore can guarantee the
The execution efficiency for the read operation that one application is initiated not will receive the influence of other application read operation.
For the execution efficiency for further promoting the first initiated read operation of application, terminal is held using the first non-master connection
When the row read operation, it can first detect whether in the presence of the described first idle non-master connection；When having idle described the
When one non-master connection, the read operation is executed using the described first idle non-master connection；When the described first all non-master companies
When connecing occupied, then it can detecte with the presence or absence of the second idle non-master connection；When the described second non-master company that there is the free time
When connecing, the read operation is executed using the described second idle non-master connection.First is executed by using the second non-master connection to answer
With the read operation initiated, more non-master connections can be made to apply initiated read operation for executing first, thus promotion the
The execution efficiency of one the initiated read operation of application.
In actual use, to reduce detecting step, the execution efficiency of the first initiated read operation of application is further promoted,
Terminal is after determining that the read operation is initiated by the first application, and whether idle, if deposited if can detect each non-master connection simultaneously
In the first idle non-master connection, the read operation initiated by the first application is executed using the first idle non-master connection；If the
One non-master connection is occupied but there is the second idle non-master connection, then can be used the non-master connection execution of idle second by
The read operation that first application is initiated.
Due to the limited amount of non-master connection, and application different in the same period may concurrently be initiated to be more than non-master
The read operation of quantity is connected, therefore still there may be all non-master occupied situations of connection in actual use.Non-
In the main occupied situation of connection, read operation is needed to be put into the first queue to be processed；Then when there is idle non-master connection,
The read operation in the first queue to be processed is executed one by one using idle non-master connection.
Different according to the promoter of read operation, the concrete mode that read operation is put into queue to be processed by terminal is not also identical.
When the read operation is initiated by the second application, read operation directly can be put into the when the second connection is occupied by terminal
One queue to be processed；And when the read operation is initiated by the first application, terminal can be non-master in the first non-master connection and second
When connecting occupied, then read operation is put into the first queue to be processed.
Further, can be different according to the promoter of read operation when read operation is put into the first queue to be processed, it will read
Operate the different location being put into the first queue to be processed.It, can for the execution efficiency for improving the read operation initiated by the first application
The read operation initiated as the first application to be put into corresponding to the priority applied in the first queue to be processed with described first
Position, and the read operation that the second application is initiated is put into the tail of the queue of the first queue to be processed.
For example, the read operation directly can be put into first wait locate when the read operation is initiated by second application
Manage the tail of the queue of queue；And when the read operation is initiated by first application, it is to be processed which can be placed on first
Position before the read operation that all second applications are initiated in queue.
In the present embodiment, the terminal obtains the read operation to the database；If the read operation is by the first application
It initiates, then executes the read operation using the first non-master connection；First application is the application in the terminal.Using this reality
Apply method described in example, the first non-master connection is only used for executing the read operation that first application is initiated, therefore can guarantee the
The execution efficiency for the read operation that one application is initiated not will receive the influence of other application read operation, thereby may be ensured that the first application
The execution efficiency of initiated read operation.
Due in actual use, using in addition to needing to read contact information, it is also possible to need to rewrite contact person's letter
Breath, thus terminal except to application initiate read operation be scheduled execution in addition to, except the reading for realizing contact information, it is also necessary to
The write operation initiated application is scheduled execution, realizes the rewriting of contact information.
It referring to fig. 2, is the flow diagram of another embodiment of data base read-write method of the present invention.The embodiment is for showing
The execution method of database write operations out.Terminal can independently be scheduled write operation using method shown in the present embodiment
It executes, on the basis of execution can also being scheduled to read operation in aforementioned embodiment illustrated in fig. 1, write operation is scheduled
It executes.As shown in Fig. 2, this method comprises the following steps:
Step 201, the terminal obtains the write operation to the database.
Some in terminal is applied when needing to rewrite the contact information in contact database, can initiate one it is right
The write operation of the database, the available write operation of terminal.For example, contact application needs the information inputted according to user
When modifying contact information, one can be initiated, contact database write-read is operated, complete the modification of contact information.
Step 202, the terminal is detected whether in the presence of idle main connection.
Since main connection is for executing write operation, after getting the read operation, terminal can detecte no deposit
Idle main connection.
Step 203, when there is idle main connection, the terminal executes the write operation using the main connection.
Step 204, when all main connections are occupied, if the write operation is sent out by first application
It rises, then the write operation is put into the second queue to be processed and applies corresponding position with described first.
Since the quantity of main connection limits very much, database only has a main connection under normal conditions, and in the same period
Multiple write operations are concurrently initiated in different applications.Therefore it may occur in which the occupied situation of the main connection.
If all main connections are not occupied, terminal can detecte the promoter of the write operation；According to write operation
Write operation is put into position corresponding with write operation promoter by the difference of promoter, to guarantee that the first application is initiated to write behaviour
The execution efficiency of work.Specifically, when all main connections are occupied, if the write operation is answered by described first
With initiation, then the write operation is put into the second queue to be processed and applies corresponding position with described first；If described write
Operation is initiated by second application, then the write operation is put into the second queue to be processed corresponding with second application
Position.Wherein, the promoter of write operation can be determined by the information of the middle carrying of write operation, or can also pass through write operation
Source determine.The write operation that first application is initiated is put into the second queue to be processed and applies corresponding position with described first
It sets, it is ensured that write operation of the write operation of the first application preferentially with non-first application executes, and improves to formulate and applies the sending
The execution efficiency of write operation.
For example, the write operation directly can be put into second wait locate when the write operation is initiated by second application
Manage the tail of the queue of queue；And when the write operation is initiated by first application, it is to be processed which can be placed on second
Position before the write operation that all second applications are initiated in queue.
In the present embodiment, the terminal obtains the write operation to the database；It detects whether in the presence of idle main company
It connects；When there is idle main connection, the write operation is executed using the main connection；When all main connections are occupied
The write operation is put into the second queue to be processed and institute by the used time if the write operation is initiated by first application
It states first and applies corresponding position.Since main connection is only with write operation is executed, main connection is avoided shared by read operation
With so as to improve the execution efficiency of write operation.
It should be noted that the present invention is not to holding between step 101 to step 102 and step 201 to step 204
Row sequence is defined.Step 101 can be first carried out in actual use to step 102, then execute step 201 again to step
204；Alternatively, step 201 can also be first carried out to step 204, step 101 is then executed again to step 102；Alternatively, can also be with
Parallel execution of steps 101 is to step 102 and step 201 to step 204；Alternatively, can also independently execute step 101 to
Step 102 or step 201 are to step 204.
It is a kind of flow diagram of data base read-write method of the present invention referring to Fig. 3.Wherein, contact person stores supplier
(Contacts Provider), database connection pool (Connection Pool) and contact database
(ContactsDatabase) it can be set in the same terminal, at least one first application be also provided in the terminal
With at least one the second application.Wherein, contact person's storage supplier, database connection pool and contact database can be by terminals
It is realized by the application in terminal, or can also be by the hardware and/or software realization of compositing terminal.
When the first application in terminal or second apply when needing to read the contact information in contact database, it can
To initiate a read operation first, read operation is then sent to contact person and stores supplier；Contact person stores supplier and is connecing
After receiving read operation, then read operation is sent to database connection pool；Database connection pool is after receiving read operation, first really
Determine the promoter of read operation, if the promoter of read operation is the first application, executes the reading using the first non-master connection and grasp
Make, if the promoter of read operation is the second application, executes the read operation using the second non-master connection.
When the first application in terminal or second apply when needing to rewrite the contact information in contact database, it can
To initiate a write operation first, write operation is then sent to contact person and stores supplier；Contact person stores supplier and is connecing
After receiving write operation, then write operation is sent to database connection pool；Database connection pool uses master after receiving write operation
Connection executes the read operation.
Data base read-write method of the present invention is described further below with reference to Fig. 4.
It referring to fig. 4, is the flow diagram of another embodiment of data base read-write method of the present invention.Below with reference to Fig. 4 pairs
It is described further using the process that data base read-write method of the present invention executes read operation.Method described in the embodiment of the present invention
It can be completed by the database connection pool (ConnectionPool) in terminal.
Step 401, database connection pool obtains the read operation that application is initiated.
Step 402, database connection pool judges whether the read operation is initiated by the first application.
Step 403, if first application is initiated by first application, database connection pool detects the first non-master company
It whether idle connects.
Step 404, when the first non-master connection is idle, database connection pool executes the reading using the first non-master connection and grasps
Make.
When the read operation is initiated by the second application；Alternatively, initiated in the read operation by the first application, but first
It is non-master connection it is occupied when, after step 402 or step 404, the method can also include:
Step 405, whether the non-master connection of database connection pool detection second is idle.
Step 406, when the second non-master connection is idle, database connection pool executes the reading using the second non-master connection and grasps
Make.
If the second non-master connection is also occupied, after step 405, the method can also include:
Step 407, the read operation is put into the first queue to be processed by database connection pool.
When read operation is put into the first queue to be processed, if the promoter of read operation is the first application, just will
Read operation, which is put into the first queue to be processed, applies corresponding position with first；If the promoter of read operation is the second application
Etc. other applications, then read operation can be put into the tail of the queue of the first queue to be processed.
After the read operation is put into the first queue to be processed, it is also necessary to take out read operation and execute, therefore in step
It can also include step 408 after 407 to 409, or also may include step 410 to 411.
Step 408, whether the non-master connection of database connection pool detection second is released.
Database connection pool can notify to determine whether the second non-master connection is released by Connection Release.Wherein, described
Connection Release notice can be generated by the contact database in terminal, for being released in some main connection or some non-master connection
After putting, the main connection of notification database connection pool or the non-master connection are released.Whether database connection pool can be with receiving
Connection Release notice judges whether there is connection and is released, and whether judges the connection being released according to the content of Connection Release notice
For the second non-master connection.
Step 409, after the second non-master connection is released, database connection pool, which takes out, is located at the described first queue to be processed
Queue heads read operation, and return step 406.
It, can be from the number after database connection pool determines that certain second non-master connection is released by Connection Release notice
Read operation, and return step 406 are taken out from the queue heads according to library connection pool, read operation is transferred to the second idle non-master company
It connects.
Since the second non-master connection can be used for executing the initiated read operation of any application, no matter in first to
The read operation for handling the column head of queue team is initiated by which application, can be transferred to after the second non-master Connection Release second non-
Main connection executes.
Step 410, whether the non-master connection of database connection pool detection first is released.
Whether the connection that the content judgement that database connection pool can be notified according to Connection Release is released is first non-master
Connection.
Step 411, after the first non-master connection is released, it is described for taking out promoter from the described first queue to be processed
The read operation of first application, and return step 404.
After determining that certain first non-master connection is released by Connection Release notice, if existed in the first queue to be processed
The read operation initiated by first application, then database connection pool can take out the read operation initiated by the first application, and
Read operation is transferred to the non-master connection of idle first to execute by return step 404.
Using method provided by the present embodiment, the first non-master connection is only used for executing the reading behaviour that first application is initiated
Make, therefore can guarantee that the execution efficiency for the read operation that the first application is initiated not will receive the influence of other application read operation.
It is the flow diagram of another embodiment of data base read-write method of the present invention referring to Fig. 5.Below with reference to Fig. 5 pairs
It is described further using the process that data base read-write method of the present invention executes write operation.Method described in the embodiment of the present invention
It can be completed by database connection pool.
Step 501, database connection pool obtains the write operation that application is initiated.
Step 502, whether the main connection of database connection pool detection is idle.
Step 503, if main connection is idle, database connection pool executes the write operation using the main connection.
Step 504, if main connection is occupied, database connection pool detects whether the write operation is sent out by the first application
It rises.
Step 505, if the write operation is initiated by the first application, the write operation is put into second by database connection pool
Corresponding position is applied with described first in queue to be processed.
Step 506, if the write operation is not initiated by the first application, the write operation is put into the by database connection pool
The tail of the queue of two queues to be processed.
Whether different by the first application initiation according to write operation, terminal, which can choose, executes step 505 or step 506.?
Can also include: after step 505 or step 506
Step 507, whether the database connection pool detection main connection is released.
After receiving Connection Release notice, database connection pool can judge to be released according to the content that Connection Release notifies
It is connected based on the connection whether put, so that it is determined that whether main connection is released.
Step 508, after the main connection is released, the read operation for being located at the queue heads of the second queue to be processed is taken out,
And return step 503.
Using method provided by the present embodiment, main connection, which is only used, executes write operation, therefore avoids main connection and read
Occupied by operation, so as to improve the execution efficiency of write operation.
Corresponding with data base read-write method of the present invention, the present invention also provides data base read-write devices.
It is the structural schematic diagram of data base read-write device one embodiment of the present invention referring to Fig. 6.The data base read-write device
It can be used for executing the data base read-write method in above-mentioned each implementation.
As shown in fig. 6, the device includes: acquiring unit 601 and the first execution unit 602.
Wherein, acquiring unit 601, for obtaining the read operation to the database；First execution unit 602 is used for
When the read operation is initiated by the first application, the read operation is executed using the first non-master connection；First application is described
Application in terminal；Wherein, the described first non-master connection is the preset reading for being only used for executing the first application initiation
The non-master connection of operation；At least two non-master connection includes at least one described first non-master connection.The database is
Contact database；First application is contact application.
Optionally, as shown in fig. 7, described device can also include: the second execution unit 603, in the read operation
When being initiated by the second application, the read operation is executed using the second non-master connection；Wherein, second application is answered with described first
With difference；The second non-master connection is other non-master connections in addition to the described first non-master connection.
Optionally, first execution unit 602 includes: detection sub-unit, is used in the read operation by described first
When using initiating, detect whether in the presence of the described first idle non-master connection；Subelement is executed, for existing described in the free time
When the first non-master connection, the read operation is executed using the described first idle non-master connection.Wherein, the detection sub-unit,
It is also used to detect whether when all described first non-master connections are occupied in the presence of the second idle non-master connection；It is described
Subelement being executed, being also used to when there is the idle second non-master connection, is held using the described second idle non-master connection
The row read operation；Wherein, the described second non-master connection is other non-master connections in addition to the described first non-master connection.
Optionally, first execution unit 602 can also include subelement of joining the team, for non-in all described second
It is main connection it is occupied when, by the read operation be put into the first queue to be processed with it is described first application priority corresponding to
Position.
Read operation is executed using the device in the present embodiment, the first non-master connection is only used for executing the first application initiation
Read operation, therefore can guarantee that the execution efficiency for the read operation that the first application is initiated not will receive the shadow of other application read operation
It rings.
In another embodiment, as shown in figure 8, except acquiring unit 601, the first execution unit 602 and second execute list
Except member 603, described device can also include: third execution unit 604.
Wherein, the acquiring unit 601, is also used to obtain the write operation to the database；The third execution unit
604 include: main connecting detection subelement, for detecting whether there is idle main connection；Write operation executes subelement, is used for
When in the presence of idle main connection, the write operation is executed using the main connection；Write operation is joined the team subelement, for all
It is described it is main connection it is occupied when, if the write operation by it is described first application initiate, the write operation is put into second
Corresponding position is applied with described first in queue to be processed.Using this embodiment, is only used due to main connection and executes write operation,
It therefore can be to avoid main connection occupied by read operation, so as to improve the execution efficiency of write operation.
When executing write operation using device in the present embodiment, main connection, which is only used, executes write operation, therefore can keep away
Exempt from main connection occupied by read operation, so as to improve the execution efficiency of write operation.
It should be noted that in another embodiment, described device can only include acquiring unit 601 and at least the
One of one execution unit 602, the second execution unit 603 and third execution unit 604.For example, described device can be wrapped only
Include acquiring unit 601, the first execution unit 602 and the second execution unit 603；Alternatively, described device can also only include acquisition
Unit 601 and third execution unit 604.The present invention is not limited to this.
It is the structural schematic diagram of terminal one embodiment of the present invention referring to Fig. 9.The terminal can be used to execute aforementioned each
Data base read-write method shown in embodiment.
As shown in figure 9, the terminal may include: processor 901, memory 902.Optionally, the terminal can be with
Including communication unit 903, input-output unit 904 etc..These components are communicated by one or more bus.This field skill
Art personnel are appreciated that the structure of server shown in figure and do not constitute a limitation of the invention that it is either type trunk
Structure is also possible to hub-and-spoke configuration, can also include than illustrating more or fewer components, perhaps combine certain components or
Different component layouts.
Wherein, processor 901 is the control centre of electronic equipment, utilizes various interfaces and the entire electronic equipment of connection
Various pieces, by running or execute the software program and/or module that are stored in memory 902, and call and be stored in
Data in memory 902, to execute the various functions and/or processing data of electronic equipment.The processor 901 can be by collecting
It is formed at circuit (Integrated Circuit, abbreviation IC), such as the IC that can be encapsulated by single is formed, it can also be by even
It meets the encapsulation IC of more identical functions or different function and forms.For example, processor 901 can only include central processing unit
(Central Processing Unit, abbreviation CPU) is also possible to GPU, digital signal processor (Digital Signal
Processor, abbreviation DSP) and the control chip (such as baseband chip) in communication unit 903 combination.Implement in the present invention
In mode, CPU can be single operation core, also may include multioperation core.
Memory 902 can be used for storing software program and module, and processor 901 is stored in memory 902 by operation
Software program and module, thereby executing terminal various function application and realize data processing.Memory 902 mainly wraps
Include program storage area and data storage area, wherein program storage area can answer needed for storage program area, at least one function
With, for example the first application described in sound playing program, image playing program etc. and the embodiment of the present invention and second answer
With；Data storage area, which can be stored, uses created data (such as audio data, phone directory etc.) etc. according to terminal, in this hair
In bright embodiment, the data storage areas is for storing the database.Memory 902 may include volatile memory
902, such as non-volatile dynamic random access memory (NONVOLATILE RANDOM ACCESS MEMORY, abbreviation NVRAM),
Phase change random access memory (PHASE CHANGE RAM, abbreviation PRAM), magnetic-resistance random access memory
(MAGETORESISTIVE RAM, abbreviation MRAM) etc. can also include nonvolatile memory 902, for example, at least a disk
Memory 902, (the ELECTRICALLY ERASABLE PROGRAMMABLE of Electrical Erasable programmable read only memory 902
READ-ONLY MEMORY, abbreviation EEPROM), flush memory device, such as anti-or flash memory (NOR FLASH MEMORY) or it is anti-and
Flash memory (NAND FLASH MEMORY).Nonvolatile storage 902 stores operating system performed by processor 901 and applies journey
Sequence.The processor 901 is stored from the 902 load operating program of nonvolatile storage and data to memory and by digital content
In mass storage.The operating system includes for controlling and managing general system tasks, such as memory management, storage
Equipment control, power management etc., and facilitate the various assemblies communicated between various software and hardwares and/or driver.In this hair
In bright embodiment, the operating system can be the IOS system of the ANDROID system of GOOGLE Inc., the exploitation of APPLE company
Or this kind of embedded OS of WINDOWS operating system etc. or VXWORKS of MICROSOFT company exploitation.
The communication unit 903 makes terminal by the communication channel to be connected to long-range clothes for establishing communication channel
It is engaged in device, feasible remote server sends data or from media data under the remote server.The communication unit 903 can wrap
Include WLAN (WIRELESS LOCAL AREA NETWORK, abbreviation WIRELESS LAN) module, bluetooth module, base band
The communication modules such as (BASE BAND) module and the corresponding radio frequency of the communication module (RADIO FREQUENCY, abbreviation RF)
Circuit is communicated for carrying out WLAN communication, Bluetooth communication, infrared communication and/or cellular communications system, such as
Wideband code division multiple accesses (WIDEBAND CODE DIVISION MULTIPLE ACCESS, abbreviation W-CDMA) and/or high speed
Downlink Packet Access (HIGH SPEED DOWNLINK PACKET ACCESS, abbreviation HSDPA).The communication module is for controlling
The communication of each component in terminal processed, and can support direct memory access (DIRECT MEMORY ACCESS).
Input-output unit 904 for output information and/or information input into terminal, to realize user and terminal
Interaction.The input-output unit 904 may include input subelement and output subelement, wherein the output subelement can
It also may include other human-computer interaction interfaces, such as entity enter key, microphone etc. to include touch panel.Output
Unit includes but is not limited to image output subelement and sound output subelement.Image output subelement is for output character, figure
Piece and/or video.The image output subelement may include display panel, for example, by using LCD (Liquid Crystal
Display, liquid crystal display), OLED (Organic Light-Emitting Diode, Organic Light Emitting Diode), Flied emission
The forms such as display (field emission display, abbreviation FED) are come the display panel that configures.Or the image output
Subelement may include reflected displaying device, such as electrophoresis-type (electrophoretic) display, or utilize interference of light modulation
The display of technology (Interferometric Modulation of Light).Although inputting subelement and output subelement
It is that the function that outputs and inputs of terminal is realized as two independent components, but in some embodiments it is possible to by touch-control
Panel and display panel are integrated and that realizes terminal output and input function.For example, the image output subelement can be with
Show various Graphic User Interfaces (Graphical User Interface, abbreviation GUI) to wrap as virtual controlling component
Window, scroll bar, icon and scrapbook are included but are not limited to, so that user is operated by touch control manner.
In the present invention is implemented, the memory 902 library and application for storing data, wherein the database can be with
For contact database, the application includes the first application and the second application, the database have at least one main connection and
At least two non-master connections, the main connection is for executing the write operation to the database, and the non-master connection is for executing
Read operation to the database, first application is contact application.The input-output unit can be used for terminal
Middle inputting contact information, or can be used for showing contact information to user.
The processor 901, for obtaining the read operation to the database；It is initiated in the read operation by the first application
When, the read operation is executed using the first non-master connection；First application is the application in the terminal；Wherein, described
One non-master connection is the preset non-master connection for being only used for executing the read operation that first application is initiated；Described at least two
A non-master connection includes at least one described first non-master connection.
The processor 901 is also used to execute when the read operation is initiated by the second application using the second non-master connection
The read operation；Wherein, second application is different from first application；The second non-master connection is except described first is non-
Other non-master connections except main connection.
The processor 901 is also used to detect whether there is the free time when the read operation is initiated by first application
The described first non-master connection；When there is the idle first non-master connection, the described first idle non-master connection is used
Execute the read operation.
The processor 901 is also used to detect whether there is sky when all described first non-master connections are occupied
The second not busy non-master connection；When there is the idle second non-master connection, held using the described second idle non-master connection
The row read operation；Wherein, the described second non-master connection is other non-master connections in addition to the described first non-master connection.
The processor 901 is also used to detect whether there is sky when all described first non-master connections are occupied
The second not busy non-master connection；When there is the idle second non-master connection, held using the described second idle non-master connection
The row read operation；Wherein, the described second non-master connection is other non-master connections in addition to the described first non-master connection.
In another embodiment, the processor 901 can be used for obtaining the write operation to the database；Detection is
It is no to there is idle main connection；When there is idle main connection, the write operation is executed using the main connection；All
It is described it is main connection it is occupied when, if the write operation by it is described first application initiate, the write operation is put into second
Corresponding position is applied with described first in queue to be processed.
When executing the read operation that application is initiated, the first non-master connection is only used for executing described first terminal in this implementation
Using the read operation of initiation, therefore it can guarantee that the execution efficiency for the read operation that the first application is initiated not will receive other application reading
The influence of operation.
It is required that those skilled in the art can be understood that the technology in the embodiment of the present invention can add by software
The mode of general hardware platform realize.Based on this understanding, the technical solution in the embodiment of the present invention substantially or
Say that the part that contributes to existing technology can be embodied in the form of software products, which can deposit
Storage is in storage medium, such as ROM/RAM, magnetic disk, CD, including some instructions are used so that computer equipment (can be with
It is personal computer, server or the network equipment etc.) complete certain part institutes of each embodiment of the present invention or embodiment
The method stated.
All the embodiments in this specification are described in a progressive manner, same and similar portion between each embodiment
Dividing may refer to each other, and each embodiment focuses on the differences from other embodiments.Especially for device and
For terminal embodiment, since it is substantially similar to the method embodiment, so being described relatively simple, related place is referring to method
The part of embodiment illustrates.
The embodiments of the present invention described above are not intended to limit the scope of the present invention.It is any in the present invention
Spirit and principle within made modifications, equivalent substitutions and improvements etc., should all be included in the protection scope of the present invention.
Claims (16)
1. a kind of data base read-write method, which is characterized in that the database includes that in the terminal, the database has at least
One main connection and at least two non-master connections, the main connection are described non-master for executing the write operation to the database
Connection is for executing the read operation to the database, which comprises
The terminal obtains the read operation to the database；
If the read operation is initiated by the first application, the read operation is executed using the first non-master connection；Wherein, described first
Using for the application in the terminal；
The first non-master connection is the preset non-master connection for being only used for executing the read operation that first application is initiated；
At least two non-master connection includes at least one described first non-master connection.
2. the method as described in claim 1, which is characterized in that the method also includes:
If the read operation is initiated by the second application, the read operation is executed using the second non-master connection；
Wherein, second application is different from first application；The second non-master connection is except the described first non-master connection
Except other non-master connections.
3. the method as described in claim 1, which is characterized in that if the read operation is initiated by the first application, use
First non-master connection executes the read operation
If the read operation is initiated by first application, detect whether in the presence of the described first idle non-master connection；
When there is the idle first non-master connection, the read operation is executed using the described first idle non-master connection.
4. method according to claim 2, which is characterized in that the method also includes:
When all described first is non-master connects occupied, detect whether in the presence of the described second idle non-master connection；
When there is the idle second non-master connection, the read operation is executed using the described second idle non-master connection；
Wherein, the described second non-master connection is other non-master connections in addition to the described first non-master connection.
5. method as claimed in claim 4, which is characterized in that the method also includes:
When all described second non-master connections are occupied, by the read operation be put into the first queue to be processed with it is described
Position corresponding to the priority of first application.
6. the method as described in any one of claims 1 to 5, which is characterized in that the database is contact database.
7. the method as described in any one of claims 1 to 5, which is characterized in that first application is contact application.
8. the method as described in any one of claims 1 to 5, which is characterized in that further include:
The terminal obtains the write operation to the database；
It detects whether in the presence of idle main connection；
When there is the idle main connection, the write operation is executed using the idle main connection；
When all main connections are occupied, if the write operation is initiated by first application, write described
Operation, which is put into the second queue to be processed, applies corresponding position with described first.
9. a kind of data base read-write device, which is characterized in that the database includes that in the terminal, the database has at least
One main connection and at least two non-master connections, the main connection are described non-master for executing the write operation to the database
Connection is used to execute the read operation to the database, and described device includes:
Acquiring unit, for obtaining the read operation to the database；
First execution unit, for executing the reading using the first non-master connection when the read operation is initiated by the first application
Operation；Wherein, first application is the application in the terminal；
The first non-master connection is the preset non-master connection for being only used for executing the read operation that first application is initiated；
At least two non-master connection includes at least one described first non-master connection.
10. device as claimed in claim 9, which is characterized in that further include:
Second execution unit, for executing the reading using the second non-master connection when the read operation is initiated by the second application
Operation；
Wherein, second application is different from first application；The second non-master connection is except the described first non-master connection
Except other non-master connections.
11. device as claimed in claim 9, which is characterized in that first execution unit includes:
Detection sub-unit, for when the read operation is initiated by first application, detecting whether in the presence of idle described the
One non-master connection；
Subelement is executed, for using the described first idle non-master connection when there is the idle first non-master connection
Execute the read operation.
12. device as claimed in claim 11, which is characterized in that
The detection sub-unit is also used to detect whether there is the free time when all described first non-master connections are occupied
The second non-master connection；
The execution subelement is also used to when there is the idle second non-master connection, non-using idle described second
Main connection executes the read operation；
Wherein, the described second non-master connection is other non-master connections in addition to the described first non-master connection.
13. device as claimed in claim 12, which is characterized in that first execution unit further include:
Join the team subelement, for when all described second non-master connections are occupied, by the read operation be put into first to
Handle position corresponding to the priority applied in queue with described first.
14. such as the described in any item devices of claim 9 to 13, which is characterized in that the database is contact database.
15. such as the described in any item devices of claim 9 to 13, which is characterized in that first application is contact application.
16. such as the described in any item devices of claim 9 to 13, which is characterized in that described device further includes third execution unit,
The acquiring unit is also used to obtain the write operation to the database；
The third execution unit includes:
Main connecting detection subelement, for detecting whether there is idle main connection；
Write operation executes subelement, for being write using described in the idle main connection execution when there is idle main connection
Operation；
Write operation is joined the team subelement, for when all main connections are occupied, if the write operation is by described the
One application is initiated, then the write operation is put into the second queue to be processed and applies corresponding position with described first.
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| CN201510505796.0A CN106469156B (en) | 2015-08-17 | 2015-08-17 | Data base read-write method and device |
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| CN201510505796.0A CN106469156B (en) | 2015-08-17 | 2015-08-17 | Data base read-write method and device |
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| CN103513932A (en) * | 2012-06-28 | 2014-01-15 | 深圳市腾讯计算机系统有限公司 | Method and device for data processing |
| CN103793432A (en) * | 2012-11-01 | 2014-05-14 | 深圳中兴网信科技有限公司 | Method and device for splitting database reading and writing |
| CN104142868A (en) * | 2013-05-10 | 2014-11-12 | 腾讯科技（深圳）有限公司 | Connection establishment method and device |
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| US8429374B2 (en) * | 2010-01-28 | 2013-04-23 | Sony Corporation | System and method for read-while-write with NAND memory device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103513932A (en) * | 2012-06-28 | 2014-01-15 | 深圳市腾讯计算机系统有限公司 | Method and device for data processing |
| CN103793432A (en) * | 2012-11-01 | 2014-05-14 | 深圳中兴网信科技有限公司 | Method and device for splitting database reading and writing |
| CN104142868A (en) * | 2013-05-10 | 2014-11-12 | 腾讯科技（深圳）有限公司 | Connection establishment method and device |
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